STRUCTURAL DETTERMINATION OF SULFATED POLYSACCHARIDE FROM RED SEAEEED ACANTHOPHORA SPICIFERA
Keywords:red seaweed, Acanthophora spicifera, polysaccharide, structure
In this work, the red seaweed Acanthophora spicifera was submitted to aqueous extraction of polysaccharide and the yield was 12.6% based on dried seaweed weight. HPAEC, GPC, IR and NMR methods were used for structural determination of the polysaccharide. The results showed that the polysaccharide was composed of rhamnose, galactose, xylose, manose, glucose, monomer ratio of Gal : Xyl : Glc : Rham : Man equal to 20.9 : 2.84. 0.57 : 0.16; sulfate content 25.6%w with a molecular weight of 1327500 g/mol. The following repeating structure →4)-α-Gal6S-(1→3)-β-Gal-(1→ was found for this polysaccharide.
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